UCR Study Questions Pets' Longevity Benefit
- UC Riverside was cited in a December 2025 article reviving older pet-longevity research, but the underlying evidence showed pet contact alone did not predict longer life. - The key study followed 643 older adults from the Terman cohort and found playing with pets in 1977 was not tied to mortality through 1991. - The broader literature points instead to exercise, caregiving, and social connection as the likely pathways behind pet-related health gains. (heart.org)
The claim that pets help people live longer is weaker than it sounds: one of the best-known long-term studies found no direct survival benefit from playing with pets. (psycnet.apa.org) That study, published in 1995, used data from Lewis Terman’s longitudinal cohort, which began in 1921 and tracked about 1,500 high-ability children into old age. (howardsfriedman.com) (www.maelstrom-research.org) Researchers analyzed 643 men and women who were about 67 years old in 1977 and tested whether playing with pets predicted mortality through 1991. It did not, for the full sample or for men and women separately. (psycnet.apa.org) (scholars.duke.edu) A December 20, 2025, Antarctica Journal article pointed to UC Riverside while summarizing that result, but the underlying study itself was not a new UCR paper. It was an older archival analysis tied to the Terman cohort. (antarcticajournal.com) (psycnet.apa.org) What the evidence does support is narrower. The American Heart Association says dog ownership is associated with better recovery after heart attack and stroke, especially for people who live alone. (heart.org) A 2019 meta-analysis in *Circulation: Cardiovascular Quality and Outcomes* found dog ownership was linked to a 24% lower risk of all-cause mortality, with larger reductions after heart attack or stroke. That was an association study, not proof that dogs themselves caused longer life. (akc.org) (heart.org) Other newer studies have found possible benefits in specific areas rather than lifespan itself. A 2023 study in *Scientific Reports* linked pet ownership in 637 older adults to slower cognitive decline, with dog walking examined as one possible mechanism. (pubmed.ncbi.nlm.nih.gov) Research on older adults receiving care at home also shows pets can shape daily routines, emotional support, and caregiving burdens, which cuts against simple “pets equal longevity” claims. (pubmed.ncbi.nlm.nih.gov 1) (pubmed.ncbi.nlm.nih.gov 2) The cleanest reading is that pets may help when they increase walking, reduce isolation, or give someone a caregiving role. The older Terman-based study found that pet interaction by itself was not enough to change who lived longer. (psycnet.apa.org) (heart.org)
